Improvement in hydraulic presses



No. 75,015; .1 PATENTED MAR. a, 1868.

- c. w. HOLBROOK.

HYDRAULIC PRESS.

2 mama-auxin: 1.

m: "cams vnzns cu, Pncwauma, WASHINGTON n. c.

PATENTED MAR. 3, 1868.

G. W. HOLBROOK. HYDRAULIC PRESS.

2 SHEETS-SHEET 2.

ms in. rzns co. vuorauma, WASHINGYON. n e.

Quinn. totes gttitlt-f ffiu.

CHARLES W. HOLBROOK, OF NEW YORK. N Y.. ASSIGN OR' TO HIMSELF, WILLIAM BOARDMAN, AND CHARLES G. B'AYLER, OF SAME PLACE.

Letters Patent No. 15,015, dated March .3, 1868.

IMPROVEMENT IN HYDBAULIO PBESSES.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, CHARLES W. HOLBBOOK, of the city, county, and State of New York, have invented s new and useful Improvement in Presses; and I do hereby declare the following to he a full and exset description of the some, reference being had to the accompanying drawin5,'and to the letters of reference marked thereon.

combination with a h drenl e press.

Toenable others skilled in the art to make and use my invention, 1 will proceed 'to describe its oorrstfnc ion and operation.

Figure 1 is a plan view.

' Figure 2, s front or side elevation.

Figure 3-, end elevation.

The same letters represent corresponding parts in the difl'erent figures.

A A A A represent the. main ntp'ndsrdsv or supports of the press, 13 B the top of the press, and G G the bottom platen of-the some. D 1), the cylinde E E E. the toggle-arms, working upon the joints or'pins H H 4 s' s', the standards, to hold the toggle-shafts; K K K K, fonr lifting-rods, connecting the top toggle-shafts to the bottom platen. The standards M serve as guides, and to support the cylinder of the press, and (by means of the slides 4, working in grooves in their outer. sides, and attached to the bars at 1:) also serve as guides and supports to the top toggle-shafts and the lifting-rods K K- K K. v,

Having thus described my invention, what I elni mnnd desire to secure by Letters Patent, isp The combination and arrangement of the mova'bi'e platen C C, rods K K K K, toggle-joints H H H, and arms E-E E with the control cylinderm'otor. sll substantially as described.

CHAS- W- HOLBROOK.

.Witnenes:

Wrnum Green, the. C. LLoYn.

The nature of my invention consists in the arrangement of a series of toggle-joints, operated by and in 

